Improved Lithium Storage Performance of a TiO₂ Anode Material Doped by Co.

Content Provider	Europe PMC
Author	Cai, Li Gu, Fang-Chao Meng, Shu-Min Zhuang, An-Qi Dong, Hang Li, Zi-Zhe Guan, Zhen-Feng Li, De-Shuai Li, Yong Xu, Xi-Xiang Li, Qiang Cao, Qiang
Editor	Julien, Christian M.
Copyright Year	2023
Abstract	TiO2 is a promising anode material for lithium-ion batteries (LIBs) due to its low cost, suitable operating voltage, and excellent structural stability. The inherent poor electron conductivity and low ion diffusion coefficient, however, severely limit its application in lithium storage. Here, Co-doped TiO2 is synthesized by a hydrothermal method as an anode material since Co@TiO2 possesses a large specific surface area and high electronic conductivity. Thanks to the Co dopants, the ion diffusion and electron transport are both greatly improved, which is very beneficial for cycle stability, coulombic efficiency (CE), reversible capacity, and rate performance. As a result, Co@TiO2 shows a high reversible capacity of 227 mAh g-1 at 3 C, excellent rate performance, and cycling stability with a capacity of about 125 mAh g-1 at 10C after 600 cycles (1 C = 170 mA g-1).
Journal	Materials (Basel)
Volume Number	16
DOI	10.3390/ma16041325
PubMed Central reference number	PMC9964079
Issue Number	4
PubMed reference number	36836955
e-ISSN	19961944
Language	English
Publisher	Molecular Diversity Preservation International (MDPI)
Publisher Date	2023-02-04
Access Restriction	Open
Subject Keyword	TiO2 Co ion doping lithium-ion batteries lithium storage performance kinetic analysis
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Materials Science